def cut_into_smaller_blocks_test(self):
def gen():
yield numpy.tile(numpy.arange(0, 10), (2, 1)).transpose()
stream = StreamControl(gen())
blocks = [stream.pull(2) for i in range(0, 5)]
numpy.testing.assert_array_equal(blocks, [
[[0, 0], [1, 1]], [[2, 2], [3, 3]], [[4, 4], [5, 5]],
[[6, 6], [7, 7]], [[8, 8], [9, 9]]
])
def pad_test(self):
def gen():
yield numpy.tile(numpy.arange(0, 5), (2, 1)).transpose()
stream = StreamControl(gen())
block = stream.pull(8, pad=True)
numpy.testing.assert_array_equal(block, [
[0, 0], [1, 1], [2, 2], [3, 3],
[4, 4], [0, 0], [0, 0], [0, 0]
])
def get_bigger_blocks_test(self):
def gen():
for i in range(10):
yield numpy.array([[i * 11]])
stream = StreamControl(gen())
blocks = [stream.pull(2) for i in range(0, 5)]
numpy.testing.assert_array_equal(blocks, [
[[0], [11]], [[22], [33]], [[44], [55]],
[[66], [77]], [[88], [99]]
])
def receive_variable_block_size_test(self):
def gen():
for i in range(5):
yield numpy.array([[i * 1] * 3])
yield numpy.tile(numpy.arange(5, 10), (3, 1)).transpose()
stream = StreamControl(gen())
blocks = [stream.pull(2) for i in range(0, 5)]
numpy.testing.assert_array_equal(blocks, [
[[0, 0, 0], [1, 1, 1]], [[2, 2, 2], [3, 3, 3]],
[[4, 4, 4], [5, 5, 5]], [[6, 6, 6], [7, 7, 7]],
[[8, 8, 8], [9, 9, 9]]
])
def exhausted_test(self):
def gen():
yield numpy.tile(numpy.arange(0, 11), (2, 1)).transpose()
stream = StreamControl(gen())
blocks = [stream.pull(3) for i in range(0, 3)]
numpy.testing.assert_array_equal(blocks, [
[[0, 0], [1, 1], [2, 2]],
[[3, 3], [4, 4], [5, 5]],
[[6, 6], [7, 7], [8, 8]]
])
block = stream.pull(3)
numpy.testing.assert_array_equal(block, [[9, 9], [10, 10]])
self.assertRaises(StopIteration, stream.pull, 2)
def pull_variable_block_size_test(self):
def gen():
for i in range(20):
yield numpy.array([[i * 1] * 2])
stream = StreamControl(gen())
numpy.testing.assert_array_equal(
stream.pull(3),
[[0, 0], [1, 1], [2, 2]]
)
numpy.testing.assert_array_equal(
stream.pull(3),
[[3, 3], [4, 4], [5, 5]]
)
numpy.testing.assert_array_equal(
stream.pull(6),
[[6, 6], [7, 7], [8, 8], [9, 9], [10, 10], [11, 11]]
)